diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e20d7e8..0d1bebe 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.5.1"
+  ".": "1.6.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76e8258..bdd8392 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.6.0](https://github.com/googleapis/python-datastream/compare/v1.5.1...v1.6.0) (2023-05-25)
+
+
+### Features
+
+* Max concurrent backfill tasks ([#168](https://github.com/googleapis/python-datastream/issues/168)) ([06a127b](https://github.com/googleapis/python-datastream/commit/06a127b42677c91e8d5297253fd973e35b4823cc))
+
 ## [1.5.1](https://github.com/googleapis/python-datastream/compare/v1.5.0...v1.5.1) (2023-03-23)
 
 
diff --git a/google/cloud/datastream/gapic_version.py b/google/cloud/datastream/gapic_version.py
index 69ff013..a016bdf 100644
--- a/google/cloud/datastream/gapic_version.py
+++ b/google/cloud/datastream/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.5.1"  # {x-release-please-version}
+__version__ = "1.6.0"  # {x-release-please-version}
diff --git a/google/cloud/datastream_v1/gapic_version.py b/google/cloud/datastream_v1/gapic_version.py
index 69ff013..a016bdf 100644
--- a/google/cloud/datastream_v1/gapic_version.py
+++ b/google/cloud/datastream_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.5.1"  # {x-release-please-version}
+__version__ = "1.6.0"  # {x-release-please-version}
diff --git a/google/cloud/datastream_v1alpha1/gapic_version.py b/google/cloud/datastream_v1alpha1/gapic_version.py
index 69ff013..a016bdf 100644
--- a/google/cloud/datastream_v1alpha1/gapic_version.py
+++ b/google/cloud/datastream_v1alpha1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.5.1"  # {x-release-please-version}
+__version__ = "1.6.0"  # {x-release-please-version}
diff --git a/samples/generated_samples/snippet_metadata_google.cloud.datastream.v1.json b/samples/generated_samples/snippet_metadata_google.cloud.datastream.v1.json
index 8a69b90..57a3985 100644
--- a/samples/generated_samples/snippet_metadata_google.cloud.datastream.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.datastream.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-datastream",
-    "version": "0.1.0"
+    "version": "1.6.0"
   },
   "snippets": [
     {
diff --git a/samples/generated_samples/snippet_metadata_google.cloud.datastream.v1alpha1.json b/samples/generated_samples/snippet_metadata_google.cloud.datastream.v1alpha1.json
index 09dea00..3c94b61 100644
--- a/samples/generated_samples/snippet_metadata_google.cloud.datastream.v1alpha1.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.datastream.v1alpha1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-datastream",
-    "version": "0.1.0"
+    "version": "1.6.0"
   },
   "snippets": [
     {